How would you separate a sample of pure Iodine from a mixture of Iodine and lead2 sulphate

Answer 1

To separate pure iodine from a mixture of iodine and lead(II) sulfate, you can use the process of sublimation. Here are the steps:

1. Set up a distillation apparatus consisting of a round-bottom flask, a condenser, and a collection flask.

2. Place the mixture of iodine and lead(II) sulfate in the round-bottom flask.

3. Heat the round-bottom flask gently using a Bunsen burner or a hot plate. The goal is to heat the flask enough to sublimate iodine but not to melt lead(II) sulfate.

4. As the mixture is heated, iodine will vaporize and rise up the condenser where it will cool down and condense.

5. The condensed iodine will collect in the collection flask while lead(II) sulfate will remain in the round-bottom flask.

6. Continue heating until all the iodine has sublimed and collected in the collection flask.

7. Once all the iodine has been collected, remove the collection flask from the apparatus.

8. Carefully scrape the solid iodine from the walls of the collection flask using a spatula to obtain pure iodine.

Note: It is important to handle iodine with caution as it is toxic and can cause skin and eye irritation. Additionally, be cautious with the heating process as overheating may cause decomposition or evaporation of the lead(II) sulfate.